Is cabosil hs5 equivalent to cabosil m5?

Works good, you just have to keep adding a little at a time to your pre mixed resin/hardener mix until you get the right consistency for your job. Be sure to wear a good dust mask as this stuff is feather light & will blow all over, it weighs nothing.

can this be mixed with bondo to thicken?

Yes this can thicken bondo. Just be careful because if you add to much your bondo will be dry.

Is this hydrophobic or hydrophyllic?

CAB-O-SIL M-5 is widely used to provide thickening, thixotrophic (shearthinning), and anti-settling behavior in liquid systems. M-5 is most efficient in non-polar to medium polarity systems. M-5 offers the best balance of thickening efficiency and dispersibility

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Cabosil Smoked Silica Thickener in Quart Tin

Product ID: 642698921

Details

Brand
Fasco Epoxies
Item form
Liquid
Material
ABS
Special features
Thixotropic
Specific uses for product
Craft Repair

📈Significant viscosity boost in liquid systems

⚙️Sub-micron particle size for precision

🛡️Reinforces silicone & organic rubbers

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$146

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In stock

Sold byAmazon BermudaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧪 Elevate your epoxy game with precision-thickened power!

FLOW LIKE A PRO - Reduces tilt angle to improve powder flow effortlessly
MASTER YOUR MIX - Thixotropic control for smooth, non-sagging epoxy blends
STRENGTH AMPLIFIER - Boosts hardness, tensile strength & stretch in rubbers
CRAFT WITH CONFIDENCE - Ideal for woodworking, furniture, and tabletop coatings
VERSATILE REINFORCEMENT - Perfect for silicone, organic rubbers, and epoxy resins

Fasco Epoxies Cabosil Smoked Silica Thickener is a premium thixotropic agent featuring sub-micron hydrophilic particles that significantly increase viscosity in epoxy and polyester systems. It enhances powder flow, reinforces silicone and organic rubbers, and improves mechanical properties like hardness and tensile strength. Packaged in a convenient quart tin, it’s the go-to additive for professionals seeking flawless, high-strength coatings and composites.

Specifications

ASIN	B074Y6V7QT
Brand	Fasco Epoxies
Brand Name	Fasco Epoxies
Color	Gray
Colour	Gray
Compatible Material	Epoxy Resin, Paint, Silicone
Container Type	Bottle
Customer Reviews	4.6 out of 5 stars 756 Reviews
Global Trade Identification Number	00819794020756
Item Form	Liquid
Item Package Quantity	1
Item form	Liquid
Manufacturer	Fasco Epoxies Inc.
Material	ABS
Material Type	ABS
Model	FIL01Q
Other Special Features of the Product	Thixotropic
Special features	Thixotropic
Specific Uses For Product	Craft, Repair, Woodworking, Furniture, Wood, Table Top Coating
Specific uses for product	Craft, Repair, Woodworking, Furniture, Wood, Table Top Coating
UPC	819794020756
Viscosity	medium
Volume	1 Quarts
Water Resistance Level	Not Water Resistant

Reviews

A**E

Fasco Epoxies Cabosil

11.01.2026

J**D

Good product

24.02.2026

R**D

Use less than half your resin volume

19.02.2026

C**I

Nice smooth, strong finish

26.02.2026

A**R

Works!

25.06.2025

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